本文实例为大家分享了Python将图片彩色转化为素描的具体代码，供大家参考，具体内容如下

第一种：

from PIL import Image, ImageFilter, ImageOps

img = Image.open('E:\\picture\\1.png')

def dodge(a, b, alpha):

return min(int(a*255/(256-b*alpha)), 255)

def draw(img, blur=25, alpha=1.0):

img1 = img.convert('L') #图片转换成灰色

img2 = img1.copy()

img2 = ImageOps.invert(img2)

for i in range(blur): #模糊度

img2 = img2.filter(ImageFilter.BLUR)

width, height = img1.size

for x in range(width):

for y in range(height):

a = img1.getpixel((x, y))

b = img2.getpixel((x, y))

img1.putpixel((x, y), dodge(a, b, alpha))

img1.show()

img1.save('E:\\picture\\10.png')

draw(img)

第二种：

from PIL import Image

import os

# 图像组成：红绿蓝 (RGB)三原色组成 亮度(255,255,255)

image = "E:\\picture\\123.png"

img = Image.open(image)

img_all = "E:\\picture\\1234.png"

new = Image.new("L", img.size, 255)

width, height = img.size

img = img.convert("L")

# print(img.size)

# print(img.mode) #RBG

#

# img_get = img.getpixel((0, 0))

# print(img_get) #三原色通道

#

# img_L=img.convert('L')

# print(img_L)

# img_get_L=img_L.getpixel((0,0)) #换算 得到灰度值

# print(img_get_L)

# 定义画笔的大小

Pen_size = 3

# 色差扩散器

Color_Diff = 6

for i in range(Pen_size + 1, width - Pen_size - 1):

for j in range(Pen_size + 1, height - Pen_size - 1):

# 原始的颜色

originalColor = 255

lcolor = sum([img.getpixel((i - r, j)) for r in range(Pen_size)]) // Pen_size

rcolor = sum([img.getpixel((i + r, j)) for r in range(Pen_size)]) // Pen_size

# 通道----颜料

if abs(lcolor - rcolor) > Color_Diff:

originalColor -= (255 - img.getpixel((i, j))) // 4

new.putpixel((i, j), originalColor)

ucolor = sum([img.getpixel((i, j - r)) for r in range(Pen_size)]) // Pen_size

dcolor = sum([img.getpixel((i, j + r)) for r in range(Pen_size)]) // Pen_size

# 通道----颜料

if abs(ucolor - dcolor) > Color_Diff:

originalColor -= (255 - img.getpixel((i, j))) // 4

new.putpixel((i, j), originalColor)

acolor = sum([img.getpixel((i - r, j - r)) for r in range(Pen_size)]) // Pen_size

bcolor = sum([img.getpixel((i + r, j + r)) for r in range(Pen_size)]) // Pen_size

# 通道----颜料

if abs(acolor - bcolor) > Color_Diff:

originalColor -= (255 - img.getpixel((i, j))) // 4

new.putpixel((i, j), originalColor)

qcolor = sum([img.getpixel((i + r, j - r)) for r in range(Pen_size)]) // Pen_size

wcolor = sum([img.getpixel((i - r, j + r)) for r in range(Pen_size)]) // Pen_size

# 通道----颜料

if abs(qcolor - wcolor) > Color_Diff:

originalColor -= (255 - img.getpixel((i, j))) // 4

new.putpixel((i, j), originalColor)

new.save(img_all)

i = os.system('mshta vbscript createobject("sapi.spvoice").speak("%s")(window.close)' % '您的图片转换好了')

os.system(img_all)

如果报错

可以直接安装

命令pip install Pillow即可

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。